45785790 has 64 divisors (see below), whose sum is σ = 123966720. Its totient is φ = 12022560.

The previous prime is 45785771. The next prime is 45785797. The reversal of 45785790 is 9758754.

45785790 is a `hidden beast` number, since 4 + 5 + 78 + 579 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45785797) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16825 + ... + 19355.

It is an arithmetic number, because the mean of its divisors is an integer number (1936980).

Almost surely, 2^45785790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45785790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61983360).

45785790 is an abundant number, since it is smaller than the sum of its proper divisors (78180930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45785790 is a wasteful number, since it uses less digits than its factorization.

45785790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2614 (or 2608 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 45785790 is about 6766.5197849411. The cubic root of 45785790 is about 357.7477442294.

The spelling of 45785790 in words is "forty-five million, seven hundred eighty-five thousand, seven hundred ninety".